isci: Manage the LLHANG timer enable/disable per-device.
The LLHANG timer should be enabled once per device. This patch corrects
both the timer enable and the timer disable for the remote device.
Signed-off-by: Jeff Skirvin <jeffrey.d.skirvin@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
diff --git a/drivers/scsi/isci/remote_device.c b/drivers/scsi/isci/remote_device.c
index 1a85e9e..86aca11 100644
--- a/drivers/scsi/isci/remote_device.c
+++ b/drivers/scsi/isci/remote_device.c
@@ -1520,3 +1520,20 @@
return status;
}
+void isci_dev_set_hang_detection_timeout(
+ struct isci_remote_device *idev,
+ u32 timeout)
+{
+ if (dev_is_sata(idev->domain_dev)) {
+ if (timeout) {
+ if (test_and_set_bit(IDEV_RNC_LLHANG_ENABLED,
+ &idev->flags))
+ return; /* Already enabled. */
+ } else if (!test_and_clear_bit(IDEV_RNC_LLHANG_ENABLED,
+ &idev->flags))
+ return; /* Not enabled. */
+
+ sci_port_set_hang_detection_timeout(idev->owning_port,
+ timeout);
+ }
+}